Drying apparatus.



A. TEGOLI. DHYING APPARATUS. APPUCATION FILED sEPT.15. 1914.

Patented Apr. 13, 1915.

2 SHEETS-SHEET 1.

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DRYING APPARATUS. APPLICATION FILED SEPT. 15, 1914.

Patented. Apr.. i3, 1915.

2 SHBETS-SHEET 2.

AUGUST TEG-04.@

' driedvfsok rfapitlily ,as to produce' l cracks or..

` transverse shaft 19 mounted-iinsuitable'been ings 20 and is provided at the outer or rear 'extremitywifth a driven pulley 21,' and ang y idler-22nd has securedto it man opening tiri-the back wall ofthe chamber an exhaust 7'fan 23, which produces a' down draft-from tle"'to'p oi thedentfeii'ofjthe machine 'and 'thieu'gh' the'sixteen drawer spaces' as indicated by the arrows, and outit'hroug'h tlie back of the apparatusnear thebottom there,- ory andthrou h a wind trunk 24. All otthe lans arein a welll known man nerrmade adjustable as' tof angle or pitch. The exhaust an shaft is driven through the Amedium of a p'ul'leyff on the'power shaft i6 and a belt 26 in an' obvious manner. It is to be understood that'thefan 23 is designed to create a relatively muchl higher wind our# rent than is created by' either-ofthe fans '11, and to that end the fan Q3 'may have its blades adjusted toa greater angle'than the blades on the fans- 11, or may have a greater number -or blades, or may bedriven at a higher speed.- ln the actual operation of my invention, for instance, thefa'n 23 will pref*- erably have eight'blades d'riven'at thousand revolutions per minute, while the fans 1.1 will have six blades driven at 800 revolutions per 'minute The' fan shafts and bearings are all suitably lubricated by oil cups'QZ.v Along -the front ofthe apparatus supported o n suitable means shown in dotted lines'l at Fig.v Qjisa front wal'lrviZS for the operator o:l the apparatus and so that he can conveniently manipulate the series of drawers.

ln using my? improved' drier the material to be acted upon is placed in as many of the drawers as may be necessary and these drawers are located in the drawer spaces over the end chambers and the speed and pitch of the fans in these compartments are lso regulated as to produce a moderate upward current of heated air which is continued for a 'very few minutes, and the material is thus dried in such manner as not to crack the surface or change the color; these'drawers are then removed and placed over the middle chamber and subjected to the action of down currents of greater volume and'velocitv than vthe air currents previously used at the Vend chambers which conduces to very rapid and complete drying, and as the material rests upon the woven wire bottoms of the drawers and the air currents are downward it will be beneath the f sixteen;

adily seettliatthe material is not tumbled and tossed about as would be the case with upward currents of the same velocityfmm h The hot water or steam pipes' at the lower portion of the apparatus may be employed or` not .as occasion demands but ithv'ill be obvious that with their use, the drying operation may be conducted in any. ki.itf,lI of weather without danger of molding.' x Viith'my apparatus the air which passes through either of the end chambers is drawn from the middle chamber, and as a consequence is heated or warmed before its 'pas sage up through the'pastes being"diied, whereas the air which passes downward through the paste supported above the middle chamber is fresh air unheated and'exerting, therefore, a rapid cooling action upon the paste.y The passage of'the 'ai-r? down through the paste supported intthe-middle set of drawers tends td somewhatuinolsten this air and also warm it sov thatl thisluirvin its passage up through the pastesupportcd above the end chamberswill not `exertisamh a rapid drying action or such a ra id'cooling action as it otherwise would o. The action' of thev air therefore isno't onlymodfi lied bythe rapidity and strer'igth-o'f'` the iblast, but is also modilied by the action ot'lthe heating pipes and by the initial' passage of the air from the exterior of Vtlie'casinfr into the middle compartment. i

'It will be seen that -in the'use o'l'fmy improved apparatus it is not necessary-toenmploy high class or expert labor, suclrasdis absolutely/necessary according-Lto `the present process of drying as success: m`such casus depends absolutely upon the slrill und-*enperience of the operator.

With an apparatus of the proportions shown land accommodation fon thirtygtwo drawers, it will be seen that when the material in the eight drawers over ezich'end chamber has been partially 'dried 'asexplained, the sixteen drawers are then placed in the sixteen drawer spaces over the middlle chamber and while the linal treatment is beingmade the end drawer spaces maybe again filled with drawers for the initial treatment, so that it will be apparent that a very large amount of material 'may f be treated in a comparatively limited period ottime, thus making the drying process less expensive in time and labor. than is the oase inthe ordinary manner of drying.

Many variations may be made fin the merc details of construction and arrangement of the apparatus without departing from the spirit of my invention which resides in pro viding for vthe partial and slow -dryingoi' the material at one or more compartments. through the medium of'blast currents, 'and the subsequent and final action of rapid exhaust currents ofgreater volume;

'Having described the construction 'and License operation of my improved paste drier and its advantages what l claim as new and desire to secure by Letters Patent, is

f l. A drier having a middle and lateral '5 chambers, the former provided with an eX- haust fan, and the latter with blast fans, a series of drawers havingbottoms adapted for the passage of' air, arranged in drawer spaces over the several compartments, and means for operating the several fans, substantially as and for the purpose set forth.

2. ln a drying apparatus such as described and comprising a middle and lateral chambers providedrespectively with an exhaust, and blast fans and means for rotating the fans, perforate drawers, said drawers having perforate bottoms andv being arranged in drawer spaces over the respective fan equipped chambers, said chambers provided with means for heating the air therein, substantially as and for the purpose set forth.

3. 1n a drying apparatus such as described, comprising a plurality of closed chambers, with a series of perforate bottom drawers arranged in drawer spaces over the said chambers, lmeans for producing upward air blast currents in certainv chambers and downward exhaust'currents through certain other chambers substantially asand for the purpose set forth. 4

e. ln a drying apparatus such as described, comprising a multiplicity of chambers provided with fans for producing wind currents, and a series of drawers removably arranged in4 drawer spaces over the said chambers, a foot board arranged in front of the apparatus substantiallyv ask and for the purpose set forth.

5. A drying apparatus such as described comprising two end chambers and one middie chamber, with fans mounted therein upon rotary shafts having belt pulleys at the outer extremities, a longitudinal power shaft having pulleys thereon, and belts leading from said pulleys to the pulleys upon the fan shafts, substantially as shown and described.

6. A drying apparatus comprising a main chamber and a lateral chamber opening thereinto, means for supporting articles to be dried in superposed relation in conjunction with either -one of said chambers, means for drawing air into the first named chamber through the; articles supported'in conjunction therewith, and means for drawing air from the first named chamber into the second named chamber and forcing said air outward therefrom through the articles supported in conjunction therewith. 60 7. 1n a drying apparatus,`a main chamber, and a lateral chamber, both of said chambers being open on one side, means for Witnesses supporting articles to be dried in conjunction with the open sides of both of said chambers, means for causing a relatively powerful current of air to pass into the main chamber through the articles supported in conjunction therewith, and means for causing a relatively less powerful current of air to pass from said main chamber into the lateral chamber and outward through the open side thereof and through the article supported in conjunction therewith.

8. A drying' apparatus comprising a main chamber and a lateral chamber connected thereto, both of said chambers having open tops, a series of superposed drawer supports mounted above the open tops of both of said chambers, a plurality of drawers having perforate bottoms adapted to be disposed in said drawer supports in superposed relation to either one of said chambers, a suction fan disposed in the main chamber, a trunk wherein said fan is mounted opening into the outer air, said fan acting to draw thel current of air downward through the articles supported above the main chamber and .to eject said air out through the trunk, and

a fan mounted to force air from the main chamber into the lateral chamber and out through the open top thereof, said fan having less power than the first named fan'.

9. 1n a drying apparatus, a rack formed to provide a plurality of drawer compartments, drawers interchangeable in said compartments, means for drawing air downward through certain of said racks and through the drawers mounted thereon,and means for forcing heated air upward through certain other of said racks and the drawers mounted thereon.

l0. 1n a drying apparatus, a casing including a main compartment and a lateral compartment, both of said compartments being open at their upper ends, a drawer rack supported 'upon said casing above said compartment and formed to support a plurality of drawers, drawers interchangeably.

supported upon said racks, a wind trunkeX- tending outward f1 om the main compartment, a suction fan mounted therein, a fan mounted between the main compartment and the lateral compartment and drawing airy from the main compartment into the lateral compartment and forcing it out through the open top thereof, and meansfor heating the air within the main compartment.

1n testimony whereof 1 hereunto ailix my signature in the presence of two witnesses.

AUGUST TEGOL. l

PHILIP WARE,

A. VESKE. 

